/*
 * Copyright (C) 2005 Joe Walnes.
 * Copyright (C) 2006, 2007, 2009 XStream Committers.
 * All rights reserved.
 *
 * The software in this package is published under the terms of the BSD
 * style license a copy of which has been included with this distribution in
 * the LICENSE.txt file.
 * 
 * Created on 22. January 2005 by Joe Walnes
 */
package com.feilong.lib.xstream.mapper;

import java.lang.reflect.Proxy;

/**
 * Mapper for handling special cases of aliasing dynamic proxies. The alias property specifies the name an instance
 * of a dynamic proxy should be serialized with.
 *
 * @author Joe Walnes
 */
public class DynamicProxyMapper extends MapperWrapper{

    private String alias;

    public DynamicProxyMapper(Mapper wrapped){
        this(wrapped, "dynamic-proxy");
    }

    public DynamicProxyMapper(Mapper wrapped, String alias){
        super(wrapped);
        this.alias = alias;
    }

    public String getAlias(){
        return alias;
    }

    public void setAlias(String alias){
        this.alias = alias;
    }

    @Override
    public String serializedClass(Class type){
        if (Proxy.isProxyClass(type)){
            return alias;
        }else{
            return super.serializedClass(type);
        }
    }

    @Override
    public Class realClass(String elementName){
        if (elementName.equals(alias)){
            return DynamicProxy.class;
        }else{
            return super.realClass(elementName);
        }
    }

    /**
     * Place holder type used for dynamic proxies.
     */
    public static class DynamicProxy{
    }

}
